Thrombus removal device and system
First Claim
1. A device for removing a thrombus from a vascular structure, the device comprising:
- a first annular member having a guidewire lumen for slidably receiving a guidewire;
a second annular member coupled to the first annular member, the second annular member adapted to provide a suction flow path from a suction port in a distal portion of the second annular member to a proximal portion of the second annular member, the distal portion of the second annular member being directly coupled to a proximal portion of the first annular member;
a flexible mesh structure coupled to an outer surface of a distal portion of the first annular member,the suction port of the second annular member positioned to be in direct fluid communication with the vascular structure proximal of the flexible mesh structure, a longitudinal axis of the second annular member intersecting the suction port, andan actuating element coupled to the flexible mesh structure, the actuating element extending externally of the first annular member from the mesh structure to the distal portion of the second annular member and extending on to the proximal portion of the second annular member, the actuating element adapted to deploy the flexible mesh structure to an expanded configuration in response to movement of the actuating element with respect to the second annular member.
1 Assignment
0 Petitions
Accused Products
Abstract
Devices and methods for removing a thrombus (clot) from a vascular structure of a living subject. An embodiment of a thrombus removal device comprises first and second annular members, the first annular member being adapted to slide over a guidewire placed in a vascular structure, the second annular member being coupled to the first annular member and having a suction flow path therethrough, the first annular member having an expandable mesh structure disposed at a distal portion thereof, the mesh structure being deployable to an expanded configuration by movement of an actuating element extending along the second annular member. An embodiment of a thrombus removal method comprises advancing the device to position the mesh structure downstream of the thrombus by sliding the first annular member over the guidewire, applying a suction force to the suction flow path of the second annular member, deploying the mesh structure, and retracting the device to cause the mesh structure to engage the thrombus.
114 Citations
34 Claims
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1. A device for removing a thrombus from a vascular structure, the device comprising:
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a first annular member having a guidewire lumen for slidably receiving a guidewire; a second annular member coupled to the first annular member, the second annular member adapted to provide a suction flow path from a suction port in a distal portion of the second annular member to a proximal portion of the second annular member, the distal portion of the second annular member being directly coupled to a proximal portion of the first annular member; a flexible mesh structure coupled to an outer surface of a distal portion of the first annular member, the suction port of the second annular member positioned to be in direct fluid communication with the vascular structure proximal of the flexible mesh structure, a longitudinal axis of the second annular member intersecting the suction port, and an actuating element coupled to the flexible mesh structure, the actuating element extending externally of the first annular member from the mesh structure to the distal portion of the second annular member and extending on to the proximal portion of the second annular member, the actuating element adapted to deploy the flexible mesh structure to an expanded configuration in response to movement of the actuating element with respect to the second annular member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification